Many customers ask why the transparency of PET bottles blown by the same material and machine is not good. Here are the specific reasons and solutions.
There are several reasons why the transparency of the blow molding machine is not good:
- The heating temperature is too high.
- The heating time is too long.
- The compressed air contains moisture.
- The injection molded embryo tube itself is not transparent (the reason needs to be found from the injection molding machine).
- The rationality of the embryo tube design.
- The inflation ratio is too small, the tube blank is thick, etc.
Taizhou Fupusi Machinery Co.,Ltd.- John Tao
Solutions:
- Cool down.
- Shorten the machine heating time.
- Remove water with a dryer.
- Improve the quality of embryo tubes, select materials and increase the dryness of raw materials.
- Improve the size design of embryo tubes.
- Reduce the diameter of embryo tubes.